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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 wim max effective range.
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<blockquote data-quote="MontanaRifleman" data-source="post: 329629" data-attributes="member: 11717"><p>Based on my own experiences and what I've read and observed here, generally, the bigger the <u>bore size vs the size and length of case</u>, the faster the powder requirement. Construction, weight and velocity of bullet will also play a factor. i.e., If we look at the 300 RUM, Reumbo is a good bet for the 200-210 g bullets with velocities around 3150-3250. For the 180 bullets, H1000 might be a better choice with velocities of about 3400 and higher. With the GS 177, which gives better pressure/velocity ratios, RL17 might be a good bet for velocities of around 3550 give or take.</p><p> </p><p>If you look at the 7WSM vs the 7RM with same weight bullets, the shape of the cases vs the bore size seems to definitely have an affect on powder choice with the 7RM having a longer and slightly larger capacity, liking slower powders better.</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 329629, member: 11717"] Based on my own experiences and what I've read and observed here, generally, the bigger the [U]bore size vs the size and length of case[/U], the faster the powder requirement. Construction, weight and velocity of bullet will also play a factor. i.e., If we look at the 300 RUM, Reumbo is a good bet for the 200-210 g bullets with velocities around 3150-3250. For the 180 bullets, H1000 might be a better choice with velocities of about 3400 and higher. With the GS 177, which gives better pressure/velocity ratios, RL17 might be a good bet for velocities of around 3550 give or take. If you look at the 7WSM vs the 7RM with same weight bullets, the shape of the cases vs the bore size seems to definitely have an affect on powder choice with the 7RM having a longer and slightly larger capacity, liking slower powders better. [/QUOTE]
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